FUNCTIONAL BLOCK DIAGRAMS
FEATURES
ADM6711
VCC
VREF
MR
RESET
GND
DEBOUNCE
Figure 1.
ADM6713
VCC
RESET
GENERATOR
240ms
VREF
APPLICATIONS
Microprocessor systems
Computers
Controllers
Intelligent instruments
Automotive systems
RESET
GENERATOR
240ms
03754-011
Specified over temperature
Low power consumption (12 μA)
Precision monitoring of 2.5 V, 3 V, 3.3 V,
and 5 V power supply voltages
Reset timeout period of 140 ms (minimum)
Manual reset input
Output stages
Push-pull RESET output (ADM6711)
Open-drain RESET output (ADM6713)
Reset assertion down to 1 V VCC
Power supply glitch immunity
4-lead SC70 package
MR
RESET
GND
DEBOUNCE
03754-001
Data Sheet
Microprocessor Supervisory
Circuit in 4-Lead SC70
ADM6711/ADM6713
Figure 2.
GENERAL DESCRIPTION
With six different reset threshold options available ranging from
2.32 V to 4.63 V, the ADM6711/ADM6713 are suitable for
monitoring 2.5 V, 3 V, 3.3 V, and 5 V supplies. A reset timeout
of at least 140 ms occurs when VCC rises above the threshold.
This gives the supply voltage time to stabilize before the
microprocessor starts up.
The ADM6711 has a push-pull output, so no additional external
components are needed. The ADM6713 open-drain output
requires an external pull-up resistor that can be connected to
a voltage higher than VCC, if desired.
The parts are highly reliable with accurate voltage references
and immunity to fast, negative-going transients on VCC. Low
current consumption and space-efficient, 4-lead SC70 packaging
make the ADM6711/ADM6713 ideal for use in low power
portable applications.
VCC
MR
VCC
*RPULL-UP
MICROPROCESSOR
SYSTEM
ADM6711/
ADM6713
RESET
RESET
GND
GND
*ADM6713 ONLY
03754-002
The ADM6711/ADM6713 are reset generator circuits suitable
for use in microprocessor-based systems. They provide a reset
signal on power-up, power-down, and whenever the supply
voltage falls below a preset threshold. In addition, both parts
have a debounced manual reset input so that a reset signal can
also be initiated with an external switch or logic signal.
Figure 3. Typical Operating Circuit
Rev. B
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